The present invention relates to methods for their preparation are useful substituted phenoxy acetic acid, and pharmaceutical compositions containing them as medicaments for the treatment compounds of respiratory disorders.本発明は、呼吸器障害の処置用医薬化合物として有用な置換フェノキシ酢酸、それらを含む医薬組成物、およびそれらの製造法に関する。